{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Transtheoretical+Model+%28TTM%29+of+health+behavior+change",
    "query": {
      "intervention": "Transtheoretical Model (TTM) of health behavior change"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 5,
    "total_pages": 1,
    "next_page_url": null,
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-10-07T22:59:59.714Z",
  "attribution": "Data derived from public ClinicalTrials.gov records. The official record at https://clinicaltrials.gov/ remains the source of truth for current availability, contacts, and full study details.",
  "notes": [
    "This endpoint exposes only public summary fields — no participant contact emails, phone numbers, or scraped investigator contact details.",
    "For contact information and full protocol detail, follow each trial's `official_url` to the ClinicalTrials.gov record.",
    "This API is a navigational aid. It does not provide medical advice, eligibility determinations, or compensation guarantees."
  ],
  "trials": [
    {
      "nct_id": "NCT05854836",
      "title": "Preconception Intervention for Incarcerated Women With Substance Use",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Substance Use Disorders"
      ],
      "interventions": [
        {
          "name": "CHOICES-PLEAS (Pregnancy Liberated from Exposure to Alcohol and Substances)",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "St. Louis University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "49 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 49 Years · Female only"
      },
      "enrollment_count": 90,
      "start_date": "2023-12-04",
      "completion_date": "2027-03-01",
      "has_results": false,
      "last_update_posted_date": "2026-07-23",
      "last_synced_at": "2026-10-07T22:59:59.714Z",
      "location_count": 1,
      "location_summary": "St Louis, Missouri",
      "locations": [
        {
          "city": "St Louis",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05854836"
    },
    {
      "nct_id": "NCT03137459",
      "title": "STAMP: Sharing and Talking About My Preferences",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Advanced Care Planning (ACP)"
      ],
      "interventions": [
        {
          "name": "Transtheoretical Model (TTM) of health behavior change",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Usual Care",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL",
        "OTHER"
      ],
      "sponsor": "Yale University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "55 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "55 Years and older"
      },
      "enrollment_count": 909,
      "start_date": "2017-07-17",
      "completion_date": "2021-06-30",
      "has_results": true,
      "last_update_posted_date": "2021-09-29",
      "last_synced_at": "2026-10-07T22:59:59.714Z",
      "location_count": 1,
      "location_summary": "New Haven, Connecticut",
      "locations": [
        {
          "city": "New Haven",
          "state": "Connecticut"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03137459"
    },
    {
      "nct_id": "NCT02741050",
      "title": "Primary Care-Based Physical Activity for Diabetic Latinas",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Diabetes",
        "Sedentary Lifestyle"
      ],
      "interventions": [
        {
          "name": "Tailored Physical Activity Intervention",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Standard of Care",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of California, San Diego",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "18 Years to 70 Years"
      },
      "enrollment_count": 25,
      "start_date": "2016-08",
      "completion_date": "2019-10",
      "has_results": false,
      "last_update_posted_date": "2020-01-13",
      "last_synced_at": "2026-10-07T22:59:59.714Z",
      "location_count": 1,
      "location_summary": "La Jolla, California",
      "locations": [
        {
          "city": "La Jolla",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02741050"
    },
    {
      "nct_id": "NCT02478697",
      "title": "Tobacco Treatment for Employable Californians, Total IMPACT Study",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Tobacco Dependence"
      ],
      "interventions": [
        {
          "name": "ProChange ExpertSystem",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Stanford University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 360,
      "start_date": "2015-10",
      "completion_date": "2018-09-12",
      "has_results": false,
      "last_update_posted_date": "2024-03-20",
      "last_synced_at": "2026-10-07T22:59:59.714Z",
      "location_count": 3,
      "location_summary": "Menlo Park, California • San Francisco, California • San Rafael, California",
      "locations": [
        {
          "city": "Menlo Park",
          "state": "California"
        },
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "San Rafael",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02478697"
    },
    {
      "nct_id": "NCT01033253",
      "title": "Multi-media Obesity Prevention Program for Adolescents",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Physical Activity",
        "Nutrition",
        "Obesity Prevention"
      ],
      "interventions": [
        {
          "name": "Health in Motion",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Pro-Change Behavior Systems",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "13 Years",
        "maximum_age": "19 Years",
        "sex": "ALL",
        "summary": "13 Years to 19 Years"
      },
      "enrollment_count": 1800,
      "start_date": "2005-07",
      "completion_date": "2008-07",
      "has_results": false,
      "last_update_posted_date": "2009-12-16",
      "last_synced_at": "2026-10-07T22:59:59.714Z",
      "location_count": 1,
      "location_summary": "Kingston, Rhode Island",
      "locations": [
        {
          "city": "Kingston",
          "state": "Rhode Island"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01033253"
    }
  ]
}